Public Family Trees/Glucksburg/Constantine I of Greece

King of the Hellenes

Constantine I of Greece

1868 - 1923 Β· Male Β· Athens, Greece

Son of George I of Greece and Olga Constantinovna of Russia

3

Generation

4

Ancestors

11

Descendants

3

Children

1

Marriages

Biography

Constantine I (1868 to 1923) was King of the Hellenes from 1913 to 1917 and again from 1920 to 1922, the eldest son of George I and Olga Constantinovna of Russia. He commanded Greek forces in the Balkan Wars, when Greece nearly doubled in size, which made him immensely popular at his accession. His insistence on neutrality in the First World War brought him into open conflict with his prime minister Eleftherios Veniz…

Life Timeline

Born1868

Born

Born to George I of Greece, Olga Constantinovna of Russia.

Family

Married Sophia of Prussia

A partnership that connects two branches of the Glucksburg family.

Next Generation

Family line continues

3 children recorded in this branch.

Legacy

King of the Hellenes

A defining role in the story of the Glucksburg family.

Died1923

Died

The close of a life whose connections continue through the family record.

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Frederik VIII of Denmark

Gen 2 Β· 1843 - 1912

Frederik VIII (1843 to 1912) was King of Denmark from 1906 to 1912, the eldest son of Christian IX and Louise of Hesse-Kassel. He waited more than forty years as crown prince, during which he was more sympathetic than his father to the liberal parliamentary movement, and his short reign was marked by a conciliatory tone towards the Danish government and a cautious reform of the relationship with Iceland. He married Louise of Sweden in 1869. Two of their sons became kings: Christian X of Denmark and Prince Carl, who was elected King of Norway in 1905 as Haakon VII, making Frederik VIII the father of two reigning Scandinavian dynasties.

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Alexandra of Denmark

Gen 2 Β· 1844 - 1925

Alexandra of Denmark (1844 to 1925) was Queen consort of the United Kingdom and Empress of India as the wife of Edward VII. The eldest daughter of Christian IX and Louise of Hesse-Kassel, she grew up in modest circumstances in Copenhagen before her marriage in 1863 made her Princess of Wales, a role she held for 38 years, longer than anyone before her. Admired for her style and her charitable work, she founded the Imperial Military Nursing Service that bears her name and gave her name to Alexandra Rose Day. Her sister Dagmar became Empress of Russia, her brother became George I of Greece, and her daughter Maud became Queen of Norway.

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Dagmar of Denmark

Gen 2 Β· 1847 - 1928

Maria Feodorovna (1847 to 1928), born Princess Dagmar of Denmark, was Empress of Russia as the wife of Alexander III. The second daughter of Christian IX and Louise of Hesse-Kassel, she took the name Maria Feodorovna on converting to Orthodoxy before her marriage in 1866. Popular in Russian society and a tireless patron of hospitals, schools and the Russian Red Cross, she was the mother of Nicholas II, the last Russian emperor. She remained close to her sister Alexandra, queen consort of the United Kingdom, throughout her life, left Russia in 1919 aboard a British warship, and spent her final years in Denmark at the villa of HvidΓΈre near Copenhagen.

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Nicholas II of Russia

Gen 3 Β· 1868 - 1918

Nicholas II (1868 to 1918) was the last Emperor of Russia, reigning from 1894 until his abdication in March 1917. He was the eldest son of Alexander III and of Maria Feodorovna, the Danish-born daughter of Christian IX, which made him a grandson of the founder of the House of GlΓΌcksburg and a first cousin of both George V of the United Kingdom and Christian X of Denmark, whom he closely resembled. His reign saw rapid industrial growth alongside the defeat of the Russo-Japanese War, the revolution of 1905 and the creation of the Duma, and finally the strains of the First World War, which brought the three-century Romanov monarchy to an end. He died in 1918.

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Maud of Wales

Gen 3 Β· 1869 - 1938

Maud of Wales (1869 to 1938) was the first queen of independent Norway, wife of Haakon VII. The youngest daughter of Edward VII and Alexandra of Denmark, she was also a granddaughter of Christian IX, which means both she and her husband descended from the founder of the House of GlΓΌcksburg. She married her first cousin Prince Carl of Denmark in 1896 and moved to Norway when he accepted the throne in 1905. Keenly interested in winter sports, music and fashion, she kept close ties to Britain while supporting Norwegian charities and the arts, and her wardrobe is now a studied collection at the National Museum in Oslo. She was the mother of Olav V.

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Christian X of Denmark

Gen 3 Β· 1870 - 1947

Christian X (1870 to 1947) was King of Denmark from 1912 to 1947 and King of Iceland from 1918 to 1944, the eldest son of Frederik VIII and Louise of Sweden. His reign opened with constitutional conflict, including the Easter Crisis of 1920 in which his dismissal of the elected government nearly cost the monarchy its position, and closed with the German occupation of Denmark from 1940 to 1945, during which his daily rides through Copenhagen on horseback became a symbol of national endurance. He married Alexandrine of Mecklenburg-Schwerin in 1898 and was the father of Frederik IX of Denmark. His brother reigned in Norway as Haakon VII.

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Frederik IX of Denmark

Gen 4 Β· 1899 - 1972

Frederik IX (1899 to 1972) was King of Denmark from 1947 until his death, the elder son of Christian X and Alexandrine of Mecklenburg-Schwerin. A career naval officer before his accession, he was an enthusiastic sailor and an accomplished amateur conductor, and he cultivated a relaxed, approachable style that suited post-war Denmark. The defining act of his reign was the constitutional change of 1953, which allowed female succession and so made his eldest daughter his heir. He married Ingrid of Sweden in 1935, and their three daughters were Margrethe II of Denmark, Benedikte, and Anne-Marie, who became Queen of the Hellenes.

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Margrethe II of Denmark

Gen 5 Β· b. 1940

Margrethe II (born 1940) reigned as Queen of Denmark from 1972 until her abdication on 14 January 2024, becoming Europe's longest-serving head of state before she stood down. The eldest daughter of Frederik IX and Ingrid of Sweden, she became heir only because the constitution was changed in 1953 to allow female succession. She trained as an archaeologist, taking part in excavations in Egypt and Italy, and built a parallel career as an artist: she designed stage sets and costumes, and illustrated the Danish edition of The Lord of the Rings under the name Ingahild Grathmer. She married Henri de Laborde de Monpezat in 1967 and is the mother of King Frederik X and Prince Joachim.

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Benedikte of Denmark

Gen 5 Β· b. 1944

Princess Benedikte of Denmark (born 1944) is the second daughter of Frederik IX and Ingrid of Sweden and the younger sister of Queen Margrethe II. In 1968 she married Richard, Prince of Sayn-Wittgenstein-Berleburg, and for many years divided her life between Germany and Denmark, retaining her Danish royal duties on the condition that her children were raised in Denmark for part of the year. She has carried out an unusually long record of official engagements for the Danish crown and is best known publicly for her lifelong involvement with equestrian sport, serving in senior roles in Danish and international riding organisations, as well as with the Danish Girl Guides and a wide range of charities.

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Alexia of Greece and Denmark

Gen 6 Β· b. 1965

Princess Alexia of Greece and Denmark (born 1965) is the eldest child of Constantine II and Anne-Marie of Denmark. Born at Mon Repos on Corfu, the same house as her kinsman Prince Philip, she was two when her family left Greece, and she grew up in Rome and London. She studied art history and later trained to work with children with special educational needs, teaching in that field. In 1999 she married Carlos Morales Quintana, an architect, and the couple lived for many years in Lanzarote in the Canary Islands and later in London. She is the sister of Crown Prince Pavlos, Nikolaos, Theodora and Philippos.

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Pavlos of Greece and Denmark

Gen 6 Β· b. 1967

Pavlos, Crown Prince of Greece (born 1967), is the eldest son of Constantine II and Anne-Marie of Denmark and, since his father's death in 2023, head of the former Greek royal house. He was born in Athens shortly before the family left Greece and was raised in Rome and England, attending Sandhurst and serving briefly in the British Army before studying international relations at Georgetown University. He has worked in finance and investment in New York and London. He married Marie-Chantal Miller in London in 1995, and the couple have five children. He has in recent years taken part in public and charitable life in Greece, including his father's funeral arrangements and family foundations.

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Frequently Asked Questions

Who were Constantine I of Greece's parents?+

Constantine I of Greece's recorded parents are George I of Greece, Olga Constantinovna of Russia.

Who were Constantine I of Greece's children?+

Constantine I of Greece has 3 recorded children: George II of Greece, Alexander of Greece, Paul of Greece.

Who did Constantine I of Greece marry?+

Constantine I of Greece married Sophia of Prussia.

Who were Constantine I of Greece's siblings?+

Constantine I of Greece has 1 recorded sibling: Andrew of Greece and Denmark.

What did Constantine I of Greece do?+

Constantine I of Greece is recorded as King of the Hellenes in the Glucksburg family tree.

Where was Constantine I of Greece from?+

Constantine I of Greece's recorded native place is Athens, Greece.

How many relatives of Constantine I of Greece are recorded?+

4 ancestors and 11 descendants of Constantine I of Greece are recorded so far, within a tree of 59 people.

How is Constantine I of Greece related to Christian IX of Denmark?+

Constantine I of Greece is recorded as Christian IX of Denmark's Grandson.

What family tree does Constantine I of Greece belong to?+

Constantine I of Greece is recorded in the Glucksburg family tree on My rOoOts, alongside 58 other people.

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